Spory gleǐkhenievykh paporotnikov
Series: Akademiia nauk SSSR.  Geologicheskiǐ institut.  Trudy, vyp. 186
Publisher: Nauka
Published: 1968
Place of publication: Moskva
Language: rus
Number of pages: 115
Subjects: Ferns, Fossil; Paleobotany -- Eurasia; Spores (Botany), Fossil